SiftingSignalSources directory · Updated May 24, 2026
Every outlet feeding SiftingSignal.
The complete source list across all niches, with the tier assignment and a one-sentence rationale for each. This is the trust primitive: every synthesis you read pulls from this list. Read the full tier criteria →
Tier 1
Top experts
Peer-reviewed primary sources, first-party data, or named individuals with a documented track record.
Tier 2
Institutional analysis
Established institutions producing edited, named-byline analysis. Trade press and specialist desks.
Tier 3
Industry / journalism
Mid-tier journalism and industry analysts. Wide reach, speed-first cadence, editorial standards.
Tier 4
Popular voices
Popularizers and mainstream influencers. High reach, audience-shaped framing, lower citation density.
Tier 5
Forum / anonymous
Anonymous community discussion. Useful as a noise-floor reading; never the basis for a primary claim.
Niche
Tier
— sources
Don't see a source you think belongs? Email [email protected] with subject source-suggestion — we review monthly. Disagree with a tier? Subject tier-challenge — every challenge is logged and reviewed; tier changes are published in the corrections log.